Abaixo está uma instrução que descreve uma tarefa de geração de SQL, combinada com uma entrada que fornece mais contexto sobre os esquemas de tabela disponíveis. Escreva o código SQL que responda adequadamente à solicitação
 ###Instrução: Qual cepa tem 1.312 genes?
 ###Tabelas: CREATE TABLE doubles_titles_23 (doubles_titles_23_id AUTO_INCREMENT PRIMARY KEY, Outcome VARCHAR, Date INT, Tournament VARCHAR, Surface VARCHAR, Partner VARCHAR, Opponents in the final VARCHAR, Score in the final VARCHAR) CREATE TABLE  (_id AUTO_INCREMENT PRIMARY KEY, Species VARCHAR, Strain VARCHAR, Type VARCHAR, Base Pairs VARCHAR, Genes VARCHAR) CREATE TABLE sources_of_income (sources_of_income_id AUTO_INCREMENT PRIMARY KEY, Region VARCHAR, Employment ( salaries & wages) VARCHAR, Self employed VARCHAR, Investment income VARCHAR, Working tax credit VARCHAR, State pensions VARCHAR, Occupational pensions VARCHAR, Disability benefits VARCHAR, Other social security benefits VARCHAR, Other income sources VARCHAR) CREATE TABLE satellite_television (satellite_television_id AUTO_INCREMENT PRIMARY KEY, Channel INT, Name VARCHAR, Language VARCHAR, Owner VARCHAR, Group VARCHAR, Type VARCHAR) CREATE TABLE notable_villains (notable_villains_id AUTO_INCREMENT PRIMARY KEY, Character VARCHAR, Portrayed by VARCHAR, Crime VARCHAR, First appearance VARCHAR, Last appearance VARCHAR)  
SELECT Strain FROM  WHERE Genes = 1,312